<template>
  <div class='song-list'>
    <ul>
      <li @click='selectItem(song,index)'
          v-for='(song,index) in songs'
          class='item'
          :key='index'>
        <div class='rank'
             v-show='rank'>
          <span :class='getRankImg(index)'>{{getRankTxt(index)}}</span>
        </div>
        <div class='content'>
          <h2 class='name'>{{song.name}}</h2>
          <p class='desc'>{{getDesc(song)}}</p>
        </div>
      </li>
    </ul>
  </div>
</template>

<script>
export default {
  name: 'SongList',
  props: {
    songs: {
      type: Array,
      default: () => []
    },
    rank: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    selectItem (item, index) {
      this.$emit('select', item, index)
    },
    getDesc (song) {
      return `${song.singer} . ${song.album}`
    },
    getRankImg (index) {
      if (index <= 2) {
        return `icon icon${index}`
      } else {
        return 'text'
      }
    },
    getRankTxt (index) {
      if (index > 2) {
        return index + 1
      }
    }
  }
}
</script>
<style scoped lang="stylus" rel="stylesheet/stylus">
@import '~common/stylus/variable'
@import '~common/stylus/mixin'
.song-list
  .item
    display: flex
    align-items: center
    box-sizing: border-box
    height: 64px
    font-size: $font-size-medium
    .rank
      flex: 0 0 25px
      width: 25px
      margin-right: 30px
      text-align: center
      .icon
        display: inline-block
        width: 25px
        height: 24px
        background-size: 25px 24px
        &.icon0
          bg-image('first')
        &.icon1
          bg-image('second')
        &.icon2
          bg-image('third')
      .text
        color: $color-theme
        font-size: $font-size-large
    .content
      flex: 1
      line-height: 20px
      overflow: hidden
      .name
        no-wrap()
        color: $color-text
      .desc
        no-wrap()
        margin-top: 4px
        color: $color-text-d
</style>
